Define photosynthesis, cellular respiration, autotroph, heterotroph, herbivore, carnivore,
omnivore

Omnivore is an animal that eats both plants and animals.

Carnivore is an animal that eats only meat. Herbivore is an animal that eats only plants.

Heterotroph is an organism deriving its nutritional requirements from complex organic substances.

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.

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explanation:

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.